A part of the World Trade Center cleanup was organizing all artifacts -- large and small -- in a place big enough to hold everything. Ultimately, the Fresh Kills landfill in Staten Island served as the staging are for this work; here is a glimpse of how that was done.

The roots of modern day Al Qaeda can be traced back to the Muslim Brotherhood organization that began in Egypt. Find out how Osama Bin Laden made connections to the different leaders who helped him eventually plan and carry out the events of September 11th.